The first SACEMA Quarterly update of 2010 was devoted to the topic of HIV incidence (the rate of occurrence of new infections in a population). Incidence will always remain a crucial measure in epidemiology, providing a direct and current indication of the spread of disease. Prevalence (the fraction of the population with a condition at a point in time) is a metric more commonly measured, but i...

Quenched and partially quenched chiral perturbation theory for vector mesons is developed and is used to extract chiral loop correction to the ρ meson mass. Connections to fully quenched and totally unquenched chiral perturbation theory results are discussed. It is also shown that (partially) quenched perturbation theory for tensor mesons can be formulated analogously, and the chiral correction...

String cosmology is revisited from cosmological viewpoint of holographic principle put forward by ‘t Hooft, and by Fischler and Susskind. It is shown that the holography requires existence of a ‘graceful exit’ mechanism, which renders the Universe nonsingular by connecting preand post-big bang phases smoothly. It is proven that flat Universe is consistent with the holography only if it starts w...

String cosmology is revisited from cosmological viewpoint of holographic principle put forward by ‘t Hooft, and by Fischler and Susskind. It is shown that the holography requires existence of a ‘graceful exit’ mechanism, which renders the Universe nonsingular by connecting preand post-big bang phases smoothly. It is proven that flat Universe is consistent with the holography only if it starts w...

From the present cosmic abundance of the light elements, one can obtain a lifetime bounds of LSP. From the consideration of deuterium, we obtain τχ ≥ 10 6 s [1]. INTRODUCTION More than 20 years have passed since the Lee-Weinberg bound on the stable heavy neutrino was proposed [2]. It applies to an absolutely stable particle which needs a conserved quantum number. The decaying particle cosmology...

This study uses the Implicit Associations Test (IAT; Greenwald, McGhee & Schwartz, 1998) to examine the effectiveness of assessing gender self-concept using a two-dimensional model (in which it is possible to score high on both masculinity and femininity) versus a one-dimensional model (in which masculinity and femininity are opposite ends of a bipolar scale). The researchers expected that the ...

Identification of polymorphism is the key for genetic mapping, diagnosis and marker-assisted selection. Restriction fragment-length polymorphisms (RFLPs) and short tandem repeats (STRs), also known as microsatellites, are commonly used genetic markers. Until discovery of STRs, RFLPs were used for genetic mapping, but bi-allelic polymorphism of RFLP limited its use as a marker. Although STRs are...